Listening to Serial Com Ports that are In use

Question

I\'m dealing with some legacy systems that are using RS232 to communicate with peripherals. I\'m not very experienced with COM interfacing. I have some code that can open an

Answer 1

I have been down this same path. A hardware splitter is the easiest solution.

hub4com setup will involve the "Add New Hardware" wizard. If you have a lot of machines, geographically separated machines, or users who are not technically savvy and lack the permissions necessary, installation could be awkward.

If this is a legacy application, does it run in ntvdm? If so, you could run it in DosBox instead and alter the DosBox code to write to a file in addition to sending/receiving to/from the serial port. DosBox is cross platform as well.